8岁男孩马可的父母因为生活拮据而成天忙碌,忘记了马可的生日,还要马可整天照顾妹妹。马可深深觉得父母不理解他,一心希望快点变成大人。马可的愿望神奇地实现了,一团亮光把他变成了一个成年男人。马可去他的小学老师弗朗西丝卡那里租了间房子,找了份工作,还假装自己被绑架,从有钱的叔叔那里骗取赎金。不久,马可跟弗朗西丝卡恋爱了,可是这份超越年龄的爱情能继续吗?Marco, a nine year old boy, is in love with his elementary teacher, and feels neglected by his workaholic parents. When they forget about his birthday he wishes he could grow up at once. This really happens and Marco begins a new life as an adult. He rents a room in his teacher's flat and she falls in love with him. He even fakes a kidnapping when he runs out of money but he is mistaken for the kidnapper.